Ionic Liquid Catalysed Synthesis of β-Hydroxy Ketones
作者:Sanjib Kumar Karmee、Ulf Hanefeld
DOI:10.1002/cssc.201100083
日期:2011.8.22
Different acidic ionicliquids (ILs; namely, 1‐methylimidazolium tetrafluoroborate, 1‐methylimidazolium trifluoroacetate, N‐methyl‐2‐pyrrolidone hydrogen sulfate, N,N,N‐trioctyl‐n‐butanesulfonic acid ammonium hydrogen sulfate, 1‐methyl‐3‐(3‐sulfobutyl)imidazolium hydrogen sulfate) and basic ILs (namely, 1,1,3,3‐tetramethylguanidinium lactate and choline hydroxide) were tested as catalysts for the aldol
Zr(OtBu)4-catalysed synthesis of acetone aldol adducts and domino aldol-Tishchenko reactions with diacetone alcohol as enol equivalent
作者:Christoph Schneider、Markus Hansch
DOI:10.1039/b102941j
日期:——
Zr(OtBu)4 was found to be a potent catalyst for the synthesis of acetone aldol adducts with diacetone alcohol as enol equivalent and for domino aldol-Tishchenko reaction giving rise to 1,3-anti-diol monoesters with excellent diastereoselectivity.